Mechanism for operating on can-bodies.



MEC/EMMEN APPUCMWO HLED l2, NH3.

.miente 56h 29, 1916.

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y l@t'anat cnannns J. Nansen, or raavwoon; immers, assr'eivon ro annnrcan can COMPANY,

or new Yoan, n. a., a coaronafrron or New Jnnsnrinvasora To aZZ whom t maylcoacem:

Be'it known that l, CnanmisbV Neilson, a citizen of thevUnited States, residin "'in.

Maywood, in the county of Coolrar'xd` tate of illinois, have invented a new and useful.

operating on irregularly shaped or noncircular can bodies.

One object of the invention is to provide mechanism which will be adapted to neckin, flange and curl rectangular or other noncircular can bodies, whiohmay bemade of tin or other material, and which is adapted to perform all of the above named operations vpractically simultaneously or any one of said operations singly or any combination of them practically simultaneously.

Another object of the invention is to so arrange the coperative parts that the mechanisms may easily be adapted for beading irregularly shaped can bodies. I

Another object of the invention is to so arrange the mechanism that any of the parts may be easily replaced or repaired when the same becomeworn or broken in use.`

The invention further consists in the improvements in parts and devices and in the Fig. 5 is an elevation, upon a somewhat reduced scale, showing one method of stripping the can bodies after the operations have i been performed thereon. Y

In the drawing, 10 denotes the horn or mandrel or punch, which, as shown, is rectangular in cross sectiomand forms part of the body forming horn of a can body forming machine, and which is providedngith an and plate-.11 rigidly secured thert'famd epacedthererom as by means of screws 12 specimen@ of Letters recent.

Meenemen ron creatinine on can-nonies Patenten ret. ea, wie.

Application led may 12, 1913. Serial No. 757,093.

and sleeves 13 in which thescrews are in.-

cased. The plate 11 is also .additionally secured in place by means of cowel Ypins 14. x Between the plate 11 and the extreme end of the horn or mandrel 10 are a plurality of movable members 15, the same being normally held in contracted position by means of a coil spring 16, seated in a groove 17 formed in the sections 15. As more clearly shown in Fig. 4, each of these movable or expensible sections 15 is provided with suitable recesses adapted to clear the sleeves 13 and dowel pins 14 in their movements in' and out. rlhe outer surface of the sections 15 is kept preferably in alinement with the outer rsurface of the plate 11, and, as will be understood, the cross sectional area of the plate 11 and of the movable sections 15 when contracted is less than the cross sectional area of the main body 10 of the punch or mandrel in order to allow of the contracting or necking-in of the mouth of the can body 18.

The expansible die sections 15 are operated by means of a plunger 19, which is provided with a bevel or cam surface 20, and which is retained in place, as by means of a screw 21, having its ends extending into a slot 22. The plunger 19 is normally pressed outward by means of a spring 23 seated in a socket in the horn or mandrel 10, and the plunger 19 is moved inwardly by means of a member 24 on the die 25. The die 25 comprises a main member 26, having a head 27 secured thereto by means of a bolt127, said head being provided with a recess having a conical side surface 28 and a flat bottom 29. Mounted in the head 27 and slidable therein are a plurality of die sections 30, said ,sections 30 being normally held expanded by means of a plurality of springs 31. Each of said die sections 30 has an outer curved quadrant surface 32 adapted to engage with the coni-A cal surface 28 of therecess, and an inner v right angle extension 33, by means of which the die sections are restrained in proper position between two plates 34 and 35, the latter vbein rigidly secured together as by means o rivets or bolts 36, passing through enlarged recesses or slots 37 in the movable die sections 30. The plates 34 and 35'and thendie sections 30, which are movable in unison therewith, are normally pressed outwardly by means of a plurahtyof springs 38V seated in sockets in the head 27. The

movable die sections 30 are limited in their outward movement relatively ,to the head 2T- by means of a plateBl) removably secured to portion 40. a necl'ting-in portion 41, 41 and.

a curling die portion or shoulder 42,1't being understood that the portions 41 when the die and punchare moved together. cooperate with the movable sections 15 of the horn or mandrel.

The horn or mandrel 10 is provided. with a groove 43 extending therearound, in which is adapted to be seated a plui'ality of movablesectional thrust plates 44. the latter being provided with an open top Hanging groove 45 located adjacent to the horn 10 and extending entirely therearound. it being' apparent that part ot' the Hanging groove is formed in each of the movable thi-ust plates 44. lln Fig. 1 half of the plates 44 are shown removed. In Fig. 5 the die 1s shown as provided with a pair `of pivoted levers 4G, the saine having their outer ends normally pressed inwardly as by means of springs 47, said levers or arms 4G serving to strip the can body from the horn or mandrel 10 when the mandrel or horn and the die are separated.

In operation, the can bodies are placed on the horn or punch 10, either by having --the saine ted along the horn `rom the can body forming machine, while the thrust plates 44 are removed from the horn, or b v placing the can bodies on the horn or Amandrel from the right hand end of the latter, as viewed in Fig. 1. As the movable squeezing die and lioi-n or mandrel arc brought into engagement with'each other, the plunger 24 operates the plunger` 1S), thereby expanding the movablepunch sections 15 and simultaneously the movable die sections 30 are contracted as soon as the plate 35 engages with the end plate 11 of y the punch,` thereby contracting or nccking in the can body between the movable sec-- tions 15 and 5K0, and also simultaneously forming a curl on the extreme outer edge of the can body and also causinga flange to be formed on the inner end of *the can body in the die Hanging groove 45. The can is necked-in in this operation opposite the portions 411 of the movable sections of the die head, the portions 41 and the slections 15 serving to preserve the contour ot' the can body beneath the portion neckedportions on the. movable punch sections 15 and cooperating beaded grooves on the portions 41 of the movable die sections 30. In the dra-wings, the improvements have been shown as the same are used in connection with the horn or lhorn extension of a can body -forming machine, that is, the punch or horn or mandrel is stationary and the squeezing or female die is made movable, but, as will be obvious, the squeezing die may be made stationary and the punch or horn may be movable where the latter does not 'form an extension ot' the can body forming horn.

vany changes and variations may be made in the various details of the mechanism without departing from the spirit of the invention, and all such changes and variations are contemplated asfall within the scope of the claims` appended hereto.

What is claimed is:

1. In a machine of the class described, in -combination` a horn or mandrel and diecoto and from each other and adapted to neck-in can bodies, said die comprising a head having a plurality lof sections inovably mounted thereon andada'pted to be contracted, and springs acting at right angles to lthe sections and between the contiguous sides ot the sections for yieldingly holding them directly apart from each other.,

2. ln a machine of theclass described. in combination. a horn or mandrel and a die cooperating therewith. said lioin and die being relatively movable to and from each other and adapted to neck-in can bodies, said'horn having a plurality of movable. expansible sections thereon, means for yieldiiiglv holding the said sections in contracted position, and a radially immovable end plate fixed on the said horn in advance of the said sections. v

3. In a .machine of the-class described, in combination, a horn or mandrel provided with an internal necking-in vdie -at the end thereof, and an external necking-in die cooperating therewith, said horn and die bcing movable relatively to 'and from each other, said external necking-in die comprisling a h'ead having a4 plurality of die sections movably mounted thereon and adapted .to be contracted, and. said horn beingpr'o- `4-Vwith an internal necking-infdie at the end "thereof, and an= external neclnng-in die cooperating therewith, said hornl and die being movable relatively to. and from each other-,said external necking-in 'die compris' ing ahead having aplurality of die sectionsmovablj.y mounted thereon and adapted tofbe contracted, andsaid horn being pro vided with a' plurality of expansible members thereon and a radially immovable end' plate tixed on the said horn in advance of the said expansible members, means for normally maintaining said movable die sections in an expanded position, and means for normally maintaining said movable sections of the horn in a contracted position.

6. In a machine of the class described, in

combination, a horn or mandrel provided with an internal necking-in die at one end thereofl and an external necking-in die cooperating therewith, said externalneckingin die comprising a -plurality of sections adapted to be contracted, and a Hanging die' located at a point removed from the end of the horn and provided with a flange groove adjacent to and extending around the horn.

7. Ina machine of the class described, in combination, a horn or mandrel havingvan internal necking-in die at one end thereof and a plurality of movable expansible sec* tions mounted on the horn, and an'external necking-in die cooperating therewith, said two dies being'relatively movable to and from each other, and said external neckingin die comprising a head having a plurality of die sections movably mounted thereon and adapted to be contracted, and a flanging die located at a point removed from the end of the horn and provided with a flanging groove. .v y

8. In 'a machine of the class described, in combination,l a horn or mandrel and a die coperating therewith and relatively movable to and from each other and adapted to neck in can bodies, said die comprising head having a plurality"ofLdiesections and movably mounted thereon and adapted to be contracted, each of said die. sections being provided with a curling portion.

9. In a machine of the class described, in combination, a horn or mandrel having an internalnecking-in die'at one end thereofand a plurality of movable, expansible sec tions mounted on the horn, and an external necking-in die cooperating therewith, said two dies beingl relatively movable to and from each other, and said external neckingin die comprising a head having a plurality of die sections movably mounted thereon i and adapted to be contracted, and a flanging die locatedv at a point removed from the end of the horn and provided with a flanging groove.

l0. In a machine of the class described, in combination, a horn or mandrel andan external necking-in die coperating therewith, Vsaid parts being relatively movable to and from each other, said'die comprising ahead having a plurality of sections movably mounted thereon, pressed yieldingly apart and adapted to be contracted, each of said sections being provided with a curling shoulder. v

l1. In a machine of the class described, in

combination, a horn or mandrel having an internal neckingin die at the end thereof and an external neclringin die cooperating therewith and. relatively movable to and from each other, said external necking-in die comprising a head provided with a'recess having a cam surface and a plurality of sections movably mounted in said recess and adapted to be contracted by said cam surface, and springs acting at right angles to -the sections and between the contiguous sides of the sections for yieldingly holding them directly apart from each other.

12. In a machine of'the class described, in combination, a horn or mandrel having an internal necking-in die at the end thereof and an external necking-in die coperating therewith and relatively vmovable to and from each other, said external neckingein die comprising ahead provided with a recess having a cam surface and a plurality of sections movably mounted in said recess and adapted to be contracted by said cam surface, and springs acting at right angles to the sections and between the contiguous sides of the sections for yieldingly holding them directly apart from each other.

13. In a machine ofthe class described, in combination, a horn or mandrel provided with an internal necking-in die at one end thereof and an external neckingin die cooperating therewith, said dies being rela tively movable ,to and from each other, and said `externalv necking-in die comprising a head provided with a conical recess therein `and having mounted in said recess a plurality of ,contrac/tible die sections, a pair of/pmllelly arranged spaced plates movably mounted within said recess, a plurality of contractible die sections, a pair o f paralarr'anged spaced plates movably mounted wit-hin said recess at the inner end thereof, each of said die sections having a por'- tion thereof disposed between said plates and movable therewith, a resilient means for normally maintaining said plates, and die sections at the outer end of the recess.

14. In a machine of the class described, in combination,l a horn or. mandrel provided with an internal necking-in die at one end pair of parallel varjanzgfed spaced plates movably mounted within said recessand at the inner end thereof, each of sald die seetions having a portion thereof disposed between said plates and movable therew1th, a,

resilient means for normally maintaining said plates, and die sections at the outer end of the 1ecess,m1cla Hanging die located at a point removed fromV the end of the born and haring a Hanging groove therein.

15. In a machine of the class described, in combination, a horn or mandrel provided with an internal necking-in die at the end thereof, and an external necking-in die comprising a head having a plurality of die Sections movabl'y mounted thereon and adapted to be contracted, and "said horn being provided with a plurality of expansible members thereon, and means for stripping the can bodies from the horn.

.CHARLES J. NELSON.

Witnesses:

WVILLIAM A. GEIGER, ESTHERv Animals. 

